The site is perfect for reaching high speeds.

Rimac is getting a helping hand from a very powerful source because the Croatian Ministry of Defense is letting the EV maker use a military runway for high-speed testing. In a new video, the company thanks the Croatian Armed Forces for the assistance, and the firm briefly shows off what it is working on there.

The runway's length gives Rimac a perfect spot to stretch its vehicles’ legs for high-speed runs and handling tests. Company boss Mate Rimac recently showed how quickly the Concept_One could reach 62 miles per hour (100 kilometers per hour) but made the short run on a public road. He should have waited and recorded a longer attempt on the military test track.

Rimac’s electric supercars already have the performance take advantage of their new playground. The company’s Concept_One is good for 1,088 horsepower (811 kilowatts) and 1,180 pound-feet (1,600 Newton-meters) of torque, which comes from two electric motors on each axle. The firm quotes a top speed of 220 miles per hour (354 kilometers per hour). Rimac’s next project is the Concept_S that upgrades the body for more downforce than the current coupe and turns up the output to 1,384 hp (1,032 kW) and 1,327 lb-ft (1,799 Nm) of torque. The automaker likely needs every bit of the runway to test out the upcoming model's capabilities.